Can't remember if the reader was gender neutral but they are now also since there is so much love and requests for this i am doing all parts though some may be a bit short

Reader pov*

I struggled against reapers arms as i tried to free myself. "sweetheart stop struggling it's not going to work." he said holding on to me as I stopped struggling sighing deeply. "fine and by the way i wasn't going to jump i just i don't want to deal with this right now." i said sniffling before i start crying again. suddenly i heard the familiar swoosh of someone teleporting next to me. "Let her go pal." I heard sans say grumpily before freeing me from reapers grasp. "you can't just do that sans just let her choose." reaper said grumpily. "fine who do you choose sans said.

Both
"I can't I just can't choose I love both of  you so much and you mean so much to me." I said as tears streamed down my face when suddenly I felt two sets of arms wrapped around me tightly. "It's ok we both care about you as we are willing to share even if we don't like it." Both of them agreed as they each kissed me on each cheek.

Reaper
I-m I'm so sorry sans but I can't be with you you hurt me so much and I just don't think you understand what that did to me."  I cried as tears streamed down my face and I choked on sobs. I clutched on to reaper as he picked me up carrying me back to school.

Sans
"Im so sorry reaper but I love sans to much" I said as I hugged him tightly before going to sans. "I'm so happy you chose me sweetheart." He said before dipping me and pulling me into a kiss hugging me tightly. "I promise I will never hurt you again."

Welp here sorry there so short I ran out of inspiration